package com.huluobo.a2212mdmdemo.pages

import android.util.Log
import androidx.compose.foundation.background
import androidx.compose.foundation.clickable
import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.Row
import androidx.compose.foundation.layout.Spacer
import androidx.compose.foundation.layout.fillMaxWidth
import androidx.compose.foundation.layout.height
import androidx.compose.foundation.layout.padding
import androidx.compose.foundation.layout.size
import androidx.compose.foundation.lazy.LazyColumn
import androidx.compose.foundation.lazy.items
import androidx.compose.foundation.shape.CircleShape
import androidx.compose.foundation.shape.RoundedCornerShape
import androidx.compose.material3.Text
import androidx.compose.runtime.Composable
import androidx.compose.runtime.LaunchedEffect
import androidx.compose.runtime.getValue
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
import androidx.compose.runtime.setValue
import androidx.compose.runtime.snapshots.SnapshotStateList
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.draw.clip
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.layout.ContentScale
import androidx.compose.ui.text.font.FontWeight
import androidx.compose.ui.text.style.TextAlign
import androidx.compose.ui.unit.dp
import androidx.compose.ui.unit.sp
import androidx.navigation.NavHostController
import coil.compose.AsyncImage
import com.blankj.utilcode.util.TimeUtils
import com.hyphenate.chat.EMClient
import com.hyphenate.chat.EMConversation
import com.hyphenate.chat.EMTextMessageBody
import kotlinx.coroutines.launch
import java.text.SimpleDateFormat
import java.util.Date


@Composable
fun MessagePage(navHostController: NavHostController) {
    val allConversations = remember {
        SnapshotStateList<EMConversation>()
    }

    LaunchedEffect(key1 = "", block = {
        launch {
            //从数据库本地获取所有会话列表.是个同步方法,有可能会造成线程阻塞
            allConversations.addAll(EMClient.getInstance().chatManager().allConversations.values)
            allConversations.sortByDescending { it.lastMessage.msgTime }
        }
    })

    Column(
        Modifier
            .fillMaxWidth()
            .padding(20.dp)
    ) {
        Text(text = "消息", fontSize = 26.sp, fontWeight = FontWeight.Bold)
        Spacer(modifier = Modifier.height(10.dp))
        LazyColumn(content = {
            items(allConversations) {
                ConversationItem(emConversation = it, navHostController = navHostController)
            }
        }, verticalArrangement = Arrangement.spacedBy(10.dp), modifier = Modifier.fillMaxWidth())
    }
}

@Composable
fun ConversationItem(emConversation: EMConversation, navHostController: NavHostController) {
    var isGroup by remember {
        mutableStateOf(false)
    }

    Row(verticalAlignment = Alignment.CenterVertically, modifier = Modifier
        .padding(10.dp)
        .fillMaxWidth()
        .clickable {
            //跳转拿到聊天页面

        }) {
        AsyncImage(
            model = "https://img0.baidu.com/it/u=788800651,2030194952&fm=253&app=120&size=w931&n=0&f=JPEG&fmt=auto?sec=1730307600&t=9c17b588a934b0ccf76349e5e5b7ca08",
            contentDescription = "",
            modifier = Modifier
                .size(40.dp)
                .clip(RoundedCornerShape(5.dp)),
            contentScale = ContentScale.Crop
        )
        Row(
            modifier = Modifier
                .fillMaxWidth()
                .padding(start = 10.dp),
            horizontalArrangement = Arrangement.SpaceBetween
        ) {
            Column(modifier = Modifier.height(50.dp), verticalArrangement = Arrangement.SpaceAround) {
                Text(text = emConversation.conversationId())
                Text(text = (emConversation.lastMessage.body as EMTextMessageBody).message, color = Color.Gray)
            }

            Column(modifier = Modifier.height(50.dp), verticalArrangement = Arrangement.SpaceAround,Alignment.End) {
                val today = SimpleDateFormat("yyyy-MM-dd").format(System.currentTimeMillis())
                //获取年月日
                val date = TimeUtils.date2String(Date(emConversation.lastMessage.msgTime)).substring(0, 10)
                //获取时分秒
                val time = TimeUtils.date2String(Date(emConversation.lastMessage.msgTime)).substring(10, 16)
                //判断日期是否是今天,如果不是,展示时间,如果是,展示日期
                if (today == date) {
                    Text(text = time)
                } else {
                    Text(text = date)
                }

                if (emConversation.unreadMsgCount > 0) {
                    Text(
                        text = emConversation.unreadMsgCount.toString(), color = Color.White,
                        modifier = Modifier
                            .background(Color.Red, CircleShape)
                            .size(16.dp)
                           , fontSize = 10.sp, textAlign = TextAlign.Center
                    )
                }
            }
        }
    }
}